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c-icap(8) System Manager's Manual c-icap(8) NAME c-icap - ICAP filtering server SYNOPSIS c-icap [ -V ] [ -VV ] [ -f config-file ] [ -N ] [ -d debug-level ] [ -D ] DESCRIPTION c-icap is an implementation of an ICAP server. It can be used with HTTP proxies that support the ICAP protocol. Most of the comercial HTTP proxies must support ICAP pcotocol. OPTIONS -V Print version -VV Print build informations -f config-file Specify the configuration file -N Do not run as daemon -d level Specify the debug level -D Print debug info to stdout FILES /usr/local/etc/c-icap/c-icap.conf The main configuration file /usr/local/etc/c-icap/c-icap.magic In this file defined the types of files and the groups of file types. /var/run/c-icap.pid By default c-icap writes its pid in this file. The path of this file can changed using the PidFile configuration parameter in the c-icap.conf file /var/run/c-icap.ctl The commands socket. This file used to send commands to the icap server from command line. For information about implemented com- mands look below in the "Implemented commands" sub-section NOTES Implemented commands Currently the following commands are implemented: stop The c-icap will shutdown reconfigure The service will reread the config file without the need to stop and restart the c-icap server. The services will be reinitial- ized relog This command causes c-icap to close and reopen the log files. This is very useful for log rotation. Services and modules can define their own commands. Examples: To reconfigure c-icap: echo -n "reconfigure" > /var/run/c-icap.ctl To rotate access log: mv /var/log/c-icap/access.log /var/log/c-icap/access.log.1 echo -n "relog" > /var/run/c-icap.ctl Lookup tables Lookup tables are simple read-only databases. A lookup table can de- fined in c-icap.conf file using the form: type:path where the type is the type of lookup table and path is the extra infor- mation required to use the table (e.g. file path). Currently the fol- lowing lookup table types defined internally by c-icap: file Simple text file databases. The database records are stored in text files in the form: key[: value1, value2 ...] example path definition: file:/path/to/the/file.txt hash Similar to file lookup tables but c-icap uses fast hashes for searching. example path definition: hash:/path/to/the/file.txt regex Similar to the file lookup tables but the keys are regular ex- pressions in the form /regex/flags . For possible flags values please read 'Regex expressions' paragraph in this manual. example regex lookup table data: /^[a-m].*/i: group1 /^[n-z].*/i: group2 example path definition: regex:/path/to/the/file.txt Regex expressions The c-icap regex expressions have the form /regex_definition/flags where "flags" is one or more letters, its of them express a flag. Common flags g This flag forces the score multiplied by the number of regex expression matches. For example if the expression matches 5 times and the devined score value is 10 then the final score will be 50. i Do caseless matching m Match-any-character operators don't match a newline and ^$ operators does not match newlines within data If the module compiled using the pcre library the following flags can be used s (PCRE_DOTALL) matches anything including NL x (PCRE_EXTENDED) Ignore whitespace and # comments A (PCRE_ANCHORED) Force pattern anchoring D (PCRE_DOLLAR_ENDONLY) $ not to match newline at end U (PCRE_UNGREEDY) Invert greediness of quantifiers X (PCRE_EXTRA) PCRE extra features u (PCRE_UTF8) Run in UTF-8 mode Runtime information Someone can retrieve runtime information using the info service. The information includes bytes received and transmited, active services, information about service usage and many other. The information pro- vided in HTML and text format. Example: Retrieve runtime information from command line: c-icap-client -i localhost -s "info?view=text" -req "a_url" SEE ALSO c-icap-client(8) c-icap-stretch(8) c-icap-config(8) c-icap-libicapapi- config(8) c-icap-mkbdb(8) BUGS Many... AUTHOR Tsantilas Christos c_icap 0.6.3 c-icap(8)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | FILES | NOTES | SEE ALSO | BUGS | AUTHOR
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